Ball cases keep a set together, protected and easy to carry — which matters most for anyone who takes their own balls to a venue, and for storing a good set between sessions.

The practical benefit is that the balls stay separated. A set kept in a case does not knock against itself in transit, so the polish and the perfect sphere you paid for stay intact. It also keeps the set complete. Balls stored loose in a drawer or a bag are how sets end up one short, and replacing a single ball in a matched set is never quite the same as the original.

For a premium set in particular, a case is a small outlay that protects a considerably larger one.